\begin{tabular}{lllll} \multicolumn{4}{c}{ Activito/hormal timeormal cost/crash time/crash cost } \\ A & 20 days & $500 & 10 days & $2,000 \\ B & 30 & $400 & 10 & $1,200 \\ C & 50 & $200 & 30 & $2,000 \\ D & 20 & $200 & 5 & $1,000 \\ E & 18 & $800 & 8 & $3,000 \\ F & 60 & $800 & 20 & $2,000 \\ G & 20 & $1,600 & 20 & $1,600 \end{tabular} \begin{tabular}{lllll} \multicolumn{4}{c}{ Activito/hormal timeormal cost/crash time/crash cost } \\ A & 20 days & $500 & 10 days & $2,000 \\ B & 30 & $400 & 10 & $1,200 \\ C & 50 & $200 & 30 & $2,000 \\ D & 20 & $200 & 5 & $1,000 \\ E & 18 & $800 & 8 & $3,000 \\ F & 60 & $800 & 20 & $2,000 \\ G & 20 & $1,600 & 20 & $1,600 \end{tabular}